Got at least one data fetching method working; turns out, we can't use a patched LogicStack to get the data

Vendor/EmbedIO-3.5.2/HttpContextExtensions-Redirect.cs

@@ -0,0 +1,33 @@
+using System;
+using System.Net;
+using EmbedIO.Utilities;
+
+namespace EmbedIO
+{
+    partial class HttpContextExtensions
+    {
+        /// <summary>
+        /// Sets a redirection status code and adds a <c>Location</c> header to the response.
+        /// </summary>
+        /// <param name="this">The <see cref="IHttpContext"/> interface on which this method is called.</param>
+        /// <param name="location">The URL to which the user agent should be redirected.</param>
+        /// <param name="statusCode">The status code to set on the response.</param>
+        /// <exception cref="NullReferenceException"><paramref name="this"/> is <see langword="null"/>.</exception>
+        /// <exception cref="ArgumentNullException"><paramref name="location"/> is <see langword="null"/>.</exception>
+        /// <exception cref="ArgumentException">
+        /// <para><paramref name="location"/> is not a valid relative or absolute URL.<see langword="null"/>.</para>
+        /// <para>- or -</para>
+        /// <para><paramref name="statusCode"/> is not a redirection (3xx) status code.</para>
+        /// </exception>
+        public static void Redirect(this IHttpContext @this, string location, int statusCode = (int)HttpStatusCode.Found)
+        {
+            location = Validate.Url(nameof(location), location, @this.Request.Url);
+
+            if (statusCode < 300 || statusCode > 399)
+                throw new ArgumentException("Redirect status code is not valid.", nameof(statusCode));
+
+            @this.Response.SetEmptyResponse(statusCode);
+            @this.Response.Headers[HttpHeaderNames.Location] = location;
+        }
+    }
+}